Cat scratching post



FIG. 1 is a perspective view of a cat scratching post showing my new design, with a cat shown in phantom lines for environmental purpose;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a cat scratching post, as shown and described. 